[KNOX] S4 mini and Knox

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rulex231

Member
Mar 8, 2015
23
7
Help

Hello,

I have a I9192 duos S4 mini thats bricked and its knox warranty voided, all this because I flashed 4.4.2 using odin not knowing this would happen :crying:

What I want is to get my device working again, when I try to access recovery mode its stuck on the boot screen with the 'RECOVERY BOOTING...' text and no response.

I've tried to flash back 4.2.2 JB but odin shows fail because of KNOX.

What I want is if there's any way I can get my device unbricked with or without resetting the KNOX flag if possible, any other information required to help feel free to ask.

Also I want to ask if having the KNOX warranty flag to 0x1 caused my device to get bricked or not accessing recovery mode, because im not really sure what caused my device to get bricked.

Thanks in advance.
 
Chamelleon

Chamelleon

Senior Member
May 16, 2010
779
366
Kraków, Poland
LG G6
LG G7 ThinQ
rulex231 said:
Hello,

I have a I9192 duos S4 mini thats bricked and its knox warranty voided, all this because I flashed 4.4.2 using odin not knowing this would happen :crying:

What I want is to get my device working again, when I try to access recovery mode its stuck on the boot screen with the 'RECOVERY BOOTING...' text and no response.

I've tried to flash back 4.2.2 JB but odin shows fail because of KNOX.

What I want is if there's any way I can get my device unbricked with or without resetting the KNOX flag if possible, any other information required to help feel free to ask.

Also I want to ask if having the KNOX warranty flag to 0x1 caused my device to get bricked or not accessing recovery mode, because im not really sure what caused my device to get bricked.

Thanks in advance.
Click to expand...
Click to collapse
Flash Your phone with Odin using this PIT and latest official firmware for Your phone.
 
D

defaultwpuser

Member
Feb 15, 2015
5
0
Is it true that flashing to lollipop with no knox bootloader will remove it? I have read that some people were able to reset from 0x1 to 0x0 just by flashing to newer fw, can anyone test these methods:

- flash no_knox latest fw to a phone with knox installed
- flash latest fw to a phone with 0x1..
 
S

sasank360

Senior Member
Feb 27, 2012
692
329
Hyderabad
defaultwpuser said:
Is it true that flashing to lollipop with no knox bootloader will remove it? I have read that some people were able to reset from 0x1 to 0x0 just by flashing to newer fw, can anyone test these methods:

- flash no_knox latest fw to a phone with knox installed
- flash latest fw to a phone with 0x1..
Click to expand...
Click to collapse

DO NOT TRY THAT. You cannot remove knox bootloader. Just try to live with it.
Think of it as your evil twin brother who is as intelligent as u. :p
There is no official lollipop for s4 mini. Only custom roms which do not come with any bootloader.
Flashing old firmwares will not remove knox. It is impossible.
 
M

marcooleo

Senior Member
Jul 16, 2014
145
7
Not sure where to ask but i give it a try here.

1.) I have used Titanium Backup, Online Nandroid Manager for restoring the entire system (except for the external SD-card)

2.) I have performed a full system backup both via CWM or TWRP and saved to external SD-card

3.) I always get the errormsg while doing the backup from CWM: Android Secure is missing skipping backup program or Apps. How come it´s missing and not doing the full backup?

4.) When doing a factory reset, flashing stock ROM via Odin with success, i flash the rootkit V2 etc from Odin, then reboot and installing Busybox Pro properly, and update to SuperSU Pro without any issues. System works just fine. But i can never do a properly backup of the entire system correctly. And i cannot restore the entire system with Nandroid Manager or Recovery either. So my question is:

How do i make a properly backup of the entire system except the external SD-Card and then restore it properly as it was before?
 
jimbomodder

jimbomodder

Senior Member
Apr 8, 2015
3,914
1,340
manchester
Samsung Galaxy Note 9
Google Pixel 6a
marcooleo said:
Not sure where to ask but i give it a try here.

1.) I have used Titanium Backup, Online Nandroid Manager for restoring the entire system (except for the external SD-card)

2.) I have performed a full system backup both via CWM or TWRP and saved to external SD-card

3.) I always get the errormsg while doing the backup from CWM: Android Secure is missing skipping backup program or Apps. How come it´s missing and not doing the full backup?

4.) When doing a factory reset, flashing stock ROM via Odin with success, i flash the rootkit V2 etc from Odin, then reboot and installing Busybox Pro properly, and update to SuperSU Pro without any issues. System works just fine. But i can never do a properly backup of the entire system correctly. And i cannot restore the entire system with Nandroid Manager or Recovery either. So my question is:

How do i make a properly backup of the entire system except the external SD-Card and then restore it properly as it was before?
Click to expand...
Click to collapse

Twrp works better than cwm


Sent from my GT-I9195
 
M

matesurano

Senior Member
Oct 11, 2014
203
108
marcooleo said:
Not sure where to ask but i give it a try here.

1.) I have used Titanium Backup, Online Nandroid Manager for restoring the entire system (except for the external SD-card)

2.) I have performed a full system backup both via CWM or TWRP and saved to external SD-card

3.) I always get the errormsg while doing the backup from CWM: Android Secure is missing skipping backup program or Apps. How come it´s missing and not doing the full backup?

4.) When doing a factory reset, flashing stock ROM via Odin with success, i flash the rootkit V2 etc from Odin, then reboot and installing Busybox Pro properly, and update to SuperSU Pro without any issues. System works just fine. But i can never do a properly backup of the entire system correctly. And i cannot restore the entire system with Nandroid Manager or Recovery either. So my question is:

How do i make a properly backup of the entire system except the external SD-Card and then restore it properly as it was before?
Click to expand...
Click to collapse

Hi there. I used both TWRP and CWM. TWRP is fully touch based and looks beautiful. But many times TWRP gave me errors while backing up or restoring. It used to give me graphical glitches on display. I had to take out my battery to restart my phone.On the other hand cwm interface is hardware button based and it does not look as good as TWRP. But so far it has not failed me and works very well. I flashed CWM v 6.0.5.1 through Odin 3.09... All good........... Just my views.

My device: s4 mini GT-I9192.
 
B

brillao

New member
Sep 19, 2014
3
0
downgrade with 0x1 -> no MODEM

Hi,
i've downgraded from 4.4.2 UC (with knox 0x1) ... to 4.2.2 UB using :
PDA: I9192XXUBMK4
CSC: I9192SERBMJ3
MODEM: I9192XXUBMK4

only AP and CSC are displayed when checking version with *#1234#
and thus both SIM are NOT working, knox 0x1 still there.
I'll go back to 4.4.2 UC and not buy another $am$ung
 
Aronuser

Aronuser

Senior Member
Mar 1, 2014
1,052
443
Berlin
erdeiv said:
I could not find this downgrade thread in the general forum.
Could you please send me the link to this downgrade procedure, because I would like to downgrade it back to the 4.2.2. from the 4.4.2.
Thanks a lot.

V.
Click to expand...
Click to collapse
It took out this doesn't really work. I'm sorry for confusion. It wasn't tested.

Sent from my D6603 using Tapatalk
 
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    Aronuser
    Aronuser
    Disclaimer: I'm not liable to any demage to your device, including Knox. The information here is as good as I know, there is no guarantee.

    (If you like to provide extra information or have a correction, I'll add it to the OP)

    Read this first:

    http://xdaforums.com/showthread.php?t=2447832

    Additional information:

    - How to view if I've Knox enabled or not? Enter download-mode (Power the device off and then press volume down + home + power, then press volume up if the triangle screen appears) If it says Knox 0x1 instead of 0x0, you tripped knox

    - You'll get Knox 0x1 (warranty void) when you flash: custom kernel (which is included in many roms) or custom recovery (Update: @gladson1976 claimed a custom recovery didn't trip Knox at him. But at me it did)


    - The device will be functional as before, nothing changes, all apps work etc. (Just at booting recovery or system it says "Set warranty bit, custom recovery" and "Set warranty bit, custom kernel" (depending on if you use a custom kernel or recovery)) info provided by @rpgdev (It's been said though, that Knox related app's will stop working.) (Upate: @fburgos claims that tripping knox caused him signal issues)

    Another thing is, that if you've Knox apps still installed, they'll give you a message when giving root rights to apps "there is something wrong with the app", as reported by @Flatric

    If you get warnings about applications doing not permitted actions, delete the following files from system/app, or let SuperSU fix it for you.

    KNOXAgent.apk
    KNOXStore.apk
    ContainerAgent.apk
    (Use a root browser app for deleting the files)
    (information provided by @arco68 throught @R_a_z_v_a_n , thanks.


    - Can I reverse Knox? So far it's impossible, but maybe one day there is a workaround (Update: workaround for Exynos CPU available, but not s4 mini yet. (see at buttom))

    - Will there ever be a workaround? Knox uses and eFuse chip according to @rogier666 so there will be probably no workaround.

    - I heard that in Europe your warranty will not be void, even if it's Knox 0x1 (no guarantee) check this thread for germany: http://xdaforums.com/galaxy-s4-mini/general/warranty-knox-warranty-void-behaviour-t2919994

    - It's been reported that even flashing a newer stock firmware with Odin could cause Knox active @tinko975 (I assume this happens because of Odin update of the recovery and kernel (Use in phone Samsung updater to stay safe)

    - Reflashing the firmware doesn't cause KNOX 0x1 as reported by @Gloris, confirmed by @Bullet92

    - Many rooting method will enable KNOX too, thanks to @afme89 for the info.

    Extra:

    - People claimed that if you flash a certain rom and remove the custom kernel from it and flash it with odin then it doesn't get Knox (because no custom kernel, no custom recovery.)


    Knox workaround news:

    @masinj claimed claimed to has found a workaround for Exynos CPU (Not S4 mini) Further info about this:

    How does Knox work? Because Knox is both in the OS (apps) and in the firmware (bootloader) it works in two ways. The OS components prevent attempts to obtain root access and make rooting with these Knox apps a pain in the butt. Fortunately they can be removed. In the firmware component (bootloader), Knox works to prevent the flashing of custom kernels and recoveries. If you flash a custom rom or custom recovery WHILE on the Knox bootloader, your Knox flag will be tripped and your Warranty Bit will go from 0x0 to 0x1. The Knox bootloader cannot be downgraded to, say, the MD4 bootloader because of special protections built into it. If you attempt to downgrade it, your phone will instantly brick. Info provided by @R_a_z_v_a_n , thanks.

    Credits:

    XDA developers
    Me
    @tinko975
    @Gloris
    @Bullet92
    @afme89
    @rpgdev
    @Flatric
    @R_a_z_v_a_n
    @arco68
    @masinj
    @gladson1976
    @fburgos
    @rogier666
    View
    3
    gladson1976
    gladson1976
    Aronuser said:
    Disclaimer: I'm not liable ....

    - You'll get Knox 0x1 (warranty void) when you flash: custom kernel (which is included in many roms) or custom recovery

    Click to expand...
    Click to collapse


    I am not sure about tripping KNOX with a custom recovery.
    I have a 9192 with BML1 (has KNOX). I have rooted it with Kingo (doesn't trip KNOX) and have flashed Philz Touch recovery using Odin. I am still on the stock ROM with stock kernel.
    My KNOX warranty is still 0x0.
    Am confused now :confused: :confused:

    Screenshot_2014-06-06-15-56-48.png IMG_20140606_155158.jpg IMG_20140606_155441.jpg
    View
    3
    Razvan
    Razvan
    NOT FOR OUR PHONE! Is just for INFO.

    Some hopes for resetting Knox, currently only for Exynos CPU. :cool:

    NOT FOR OUR PHONE! Is just for INFO!

    I have resetted knox to o using file BL_HA3GZS_CLEAR_WARRANTY_BIT-4.tar thanks using Odin I have done
    [Bounty] [05/20/2014]Reset KNOX counter to 0x0 (UPDATE: 3k +)
    Click to expand...
    Click to collapse



    @Aronuser

    You can add this info in OP, if you want of course. :D

    How does Knox work? Because Knox is both in the OS (apps) and in the firmware (bootloader) it works in two ways. The OS components prevent attempts to obtain root access and make rooting with these Knox apps a pain in the butt. Fortunately they can be removed. In the firmware component (bootloader), Knox works to prevent the flashing of custom kernels and recoveries. If you flash a custom rom or custom recovery WHILE on the Knox bootloader, your Knox flag will be tripped and your Warranty Bit will go from 0x0 to 0x1. The Knox bootloader cannot be downgraded to, say, the MD4 bootloader because of special protections built into it. If you attempt to downgrade it, your phone will instantly brick.
    Click to expand...
    Click to collapse
    View
    2
    I
    issue5854
    KNOX tripped

    Hi, I like that there is someone taking care for this device.

    I have a GT-I9192 (A Duos version of S4 Mini) and rooted it so the KNOX is 0x1
    Also a friend of mine has one too, and I updated his phone to the latest stock rom (not rooted or anything other, just update) with Odin, and his warranty bit shows 0x1 :rolleyes:
    but a couple of days ago, his phone had a hardware damage (I think so) there is a problem with the screen so the phone shuts down after 3 or 4 minutes, and then doesn't restart. Went to Samsung Costumer Care and they say that the phone has been rooted, so it's out of the warranty.

    also about the knox and eFuse thing, as I could understand in some other topics ( like this one: http://xdaforums.com/showthread.php?t=2486346 ) the eFuse thing comes in use in Snapdragon N9000 and above chips, and this device has a Snapdragon 400 :eek:

    however, it would be very good if we could make a Knox reset...
    View
    2
    dedq
    dedq
    I have Knox problem.When I open it,Ijust says "creating knox mode" and exits,"failed to create knox mode".
    View

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